Time to introduce the Diente de león to the world

Presenting the Diente de león to the people of Philips Consumer
Luminaires in Kontich

Yesterday we presented the Diente de león to the people of Philips Consumer Luminaires in Kontich near Antwerpen. We received a lot of positive feedback and it was really interesting to talk with the real designers of Philips Luminaires. They all really liked the aesthetic qualities and the light effect of the Diente de león.

Antwerp Central station
Final post
This is probably the last post on this blog of PhilipsOne. In the name of the whole PhilipsOne group – Erik, Renée, Frank, Tim en rehan- we would really like to thank everybody who helped us during this project. If you have questions about this project feel free to send an e-mail to itd.philips.one(at)gmail.com
Have a nice holiday!

Building the final prototype

To build the final prototype we started with creating a
simple circuit for the components we used. After this our programmer started to
experiment with programming to get the desired light effect. Finally we managed
to control the 6 LED’s individual and in such a way that we could create a
“magic” light experience.

Working on the final prototype

Final Exhibition!!!

Goodbye ITD…
The final exhibition was done on July 2, 2010. We got a lot of visitors and feedback!!!
The remarks that users gave for the improvement:
• Make a clearer use- cue, for some users are confused in the way to interact with the product
• The product can be use in more general place, not necessarily in toilet, since user wants to be capable of playing
with it anywhere
• The color change of the light in the prototype needs to be done smoother, for in some part the color can be striking
diff erent from the whole package of concept
• Turn on/ off the product automati cally when user come and leave from the toilet 
The Remarks from PHILIPS, our Client:  
Philips was pleasantly surprised that we managed to build a working prototype.
They said that we found a good applicati on for gesture control, everyone knows it is possible but there was no convincing
reason to use it, ti ll now.
Now a day’s people spent a lot of ti me inside. There are more places in for example a offi ce where there is no window,
so for that development this lamp can be a soluti on.
They could also imagine it in a baby room, to check on the baby or when changing its dipper.
Questi ons about the shape where asked and answers, for example, why the square, no rounded corners and the
straight cavity. They suggested to place the front panel not directly to the bars, because of a diff erent light eff ect. 
And our Self- Evaluation:
In order to create a good concept that can be realize in the course, three main cores were made as considerati on in
the design process; interacti on, technology, and design, that infl uence each other. The way of interacti on determined
the technology. Direct interacti on leads to pressure sensor, and interacti on without a touch leads to gesture sensor.
Gesture control determine the product’s shape, while the components inside determine the size of the product.
As a practi cal designer, those factors has to be taken into account to create a successful product. The fi nal product of
our group is made based on those considerati ons, conti nuously developed during the ITD course. 

Final Poster 


The Final Prototype

The final prototype is a wall lamp for in the toilet. Its color and intensity are adjustable and
change from night to dawn to daylight. This can be done by moving your hand through the cavity. It is also possible to
quickly select a color, by placing your hand in the right positi on. The lamp stays on the preferred color and intensity
when the hand is pulled back. Turning the lamp of is done by completely moving your hand out of the cavity. 

Final design

This is the final ‘real’ design which should be used for manufacturing. The design is made to fit every component inside and should be everything our prototype was not. For illustrational purposes, the outer walls are not ‘frosted’. The changes are also mostly inside the AquaLumi, the outside has not been altered.


The part which is far more better than the prototype part, is the outer housing. This can be manufactured in such a way that every component fits exactly how it should and is in balance. There are four points on where the print circuit board can be fixed. Two batteries fit between these four points and the other two fit outside them. On the bottom are the added weight (for floating stability) and the charging coil.


Here is a better view of the battery placement.


The weight is positioned inside the coil and held in its place by its form. The coil is also form-fitting so it doesn’t move around inside. There are two capacitive strips and one capacitive point in the middle to make contact with the water. These are embedded in the inner shell and protrude through this shell. On the PCB should be sockets where the strips and point can be plugged in.


Close-up of the capacitve strip and point.


View of the weight and coil.


Here is a nice view of the PCB. The LEDs are integrated on the PCB which makes the whole more compact.

Final prototype

In this post we will try to make our final prototype as clear as possible. This is the prototype which we also exhibited on the ITD Exhbition. On the exploded view below you can see everything that is inside.



Inside the AquaLumi you can find:

  • Arduino Mini Pro
  • 3 x White/amber LEDs
  • 1 x Blue LED
  • 1 x Red LED
  • 3 x AAA Batteries
  • Depending on the specific prototype, we have added a number of weights to balance the AquaLumis in the water.


The features of our prototype are:

  • Control the light intensity and color by manipulating the amount of water inside the AquaLumi.
  • Depending on the waterlevel, it gives white/amber light, blue light and purplish light.
  • It can be totally submerged under water.

The outer shell was made of PETG which we vacuumshaped into the glass shape which can be seen in our previous post.


Above you see 5 white wires and 1 yellow wire which go through the inner shell and stick out on the inside. When the AquaLumi is filled with water, the white wires will make contact through the water with the yellow wire. This ensures the light can be controlled by the amount of water.


Because the AquaLumis are completely sealed, we need to charge them ‘through the air’ with an induction charger often found in electrical toothbrushes. Philips, however, also has luminaires made for underr water. We decided to buy one of these and see how these work. There is an induction charger supplied, which is pretty much the same technology and form factor as our design.

The software is programmed to create smooth transitions between the five states. So when the first connection is made with water, the first LED will gradually light instead of popping on instantly.


Five LEDs in total are inside one AquaLumi light; three white/ amber, one blue and one red. In the prototype, the first three connectors in the water will only manipulate the intensity of the three white LEDs. So when the first connector makes contact, all the white LEDs turn on and increase in brightness when more connections are made. When the fourth connector makes contact, the blue LED will gradually join the white LEDs. The same goes for the red LED when the fifth connector is submerged in the water.


Together with the refracting water and color combinations, this creates beautiful light effects on the surroundings.